Its working principle is material from the hopper into the crushing chamber, there have been high-speed rotating hammer crushing blow, under the action of centrifugal force to break the material along the outer edge of the rotor, continuous film by the hammer, tooth plate, screen film extrusion, collision, combat, rubbed and was quickly crushed, crushed powder after the centrifugal rotor by the pressure and suction force of the fan sent outside the aircraft through the sieve, sieve the powder through repetition but on top process until the machine through the sieve was sent to the far outside.